Report: Like Stuxnet, the U.S. also built Flame virus

The United States and Israel developed the Flame malware to gather intelligence on Iranian networks ahead of the attack by Stuxnet.

Unnamed sources speaking to the Washington Post said the espionage malware was developed under the same "Olympic Games" internal project which reportedly gave rise to Stuxnet.

Those sources said the malware was developed by the National Security Agency, the Central Intelligence Agency and Israel's military, although the agencies declined to comment. Flame was surveillance malware and could record audio and keystrokes, and even contained Bluetooth functionality. It targeted computers in the Middle East, mainly Iran. Sources told the Washington Post that Flame paved the way for Stuxnet and was “about preparing the battlefield for another type of covert action."